Class PdfImage

Represents the base class for images.

Inheritance
System.Object
PdfGraphicsElement
PdfLayoutElement
PdfShapeElement
PdfImage
PdfBitmap
PdfTiffImage
Inherited Members
Namespace: Syncfusion.Pdf.Graphics
Assembly: Syncfusion.Pdf.NET.dll
Syntax
public abstract class PdfImage : PdfShapeElement, IPdfWrapper

Constructors

PdfImage()

Declaration
protected PdfImage()

Properties

Height

Declaration
public virtual int Height { get; }
Property Value
Type
System.Int32

HorizontalResolution

Declaration
public virtual float HorizontalResolution { get; }
Property Value
Type
System.Single

Metadata

Gets or sets Xmp metadata of the image.

Declaration
public XmpMetadata Metadata { get; set; }
Property Value
Type
XmpMetadata
Examples
//Create a new PDF document.
PdfDocument doc = new PdfDocument();
//Add a page to the document.
PdfPage page = doc.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the image from the disk with enable metadata extraction.
PdfBitmap image = new PdfBitmap(File.OpenRead("Autumn Leaves.jpg"), true);
//Get image metadata
XmpMetadata metadata = image.Metadata;
//Create custom schema.
CustomSchema customSchema = new CustomSchema(metadata, "custom", "http://www.syncfusion.com");
customSchema["Author"] = "Syncfusion";
customSchema["creationDate"] = DateTime.Now.ToString();
customSchema["DOCID"] = "SYNCSAM001";
//Set image metadata
image.Metadata = metadata;
//Draw the image
graphics.DrawImage(image, 0, 0);
//Save and close the document
MemoryStream stream = new MemoryStream();
doc.Save(stream);
//Close the document.
doc.Close(true);
'Create a new PDF document.
Dim doc As New PdfDocument()
'Add a page to the document.
Dim page As PdfPage = doc.Pages.Add()
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Load the image from the disk with enable metadata extraction.
Dim image As New PdfBitmap(File.OpenRead("Autumn Leaves.jpg"), true)
'Get image metadata
 Dim metadata As XmpMetadata = image.Metadata
 //Create custom schema.
 Dim customSchema As New CustomSchema(metadata, "custom", "http://www.syncfusion.com")
 customSchema("Author") = "Syncfusion"
 customSchema("creationDate") = DateTime.Now.ToString()
 customSchema("DOCID") = "SYNCSAM001"
 'Set image metadata
 image.Metadata = metadata
'Draw the image
graphics.DrawImage(image, 0, 0)
'Save the document.
Dim ms As New MemoryStream()
doc.Save(stream)
'Close the document.
doc.Close(True)

PhysicalDimension

Declaration
public virtual SizeF PhysicalDimension { get; }
Property Value
Type
SizeF

VerticalResolution

Declaration
public virtual float VerticalResolution { get; }
Property Value
Type
System.Single

Width

Declaration
public virtual int Width { get; }
Property Value
Type
System.Int32

Methods

FromStream(Stream)

Creates PdfImage from stream.

Declaration
public static PdfImage FromStream(Stream stream)
Parameters
Type Name Description
System.IO.Stream stream

The stream.
Returns
Type Description
PdfImage

Returns a created PdfImage object.

GetPixelSize(Single, Single)

Calculates the width and height of the image.

Declaration
protected static SizeF GetPixelSize(float width, float height)
Parameters
Type Name Description
System.Single width

Width of the image in points.
System.Single height

Height of the image in points.
Returns
Type Description
SizeF

Calculates the width and height of the image.

GetPointSize(Single, Single)

Calculates size of the image in points.

Declaration
protected SizeF GetPointSize(float width, float height)
Parameters
Type Name Description
System.Single width

Width in pixels.
System.Single height

Height in pixels.
Returns
Type Description
SizeF

size of the image in points.

GetPointSize(Single, Single, Single, Single)

Calculates size of the image in points.

Declaration
protected SizeF GetPointSize(float width, float height, float horizontalResolution, float verticalResolution)
Parameters
Type Name Description
System.Single width

Width in pixels.
System.Single height

Height in pixels.
System.Single horizontalResolution

Horizontal resolution.
System.Single verticalResolution

Vertical resolution.
Returns
Type Description
SizeF

size of the image in points.

SetResolution(Single, Single)

Sets resolution of the image.

Declaration
protected void SetResolution(float horizontalResolution, float verticalResolution)
Parameters
Type Name Description
System.Single horizontalResolution

Horizontal resolution of the image.
System.Single verticalResolution

Vertical resolution of the image.